Teamac T-Wash Mordant Solution | Galvanised Steel Keying Prep

• Surface Prep: Clean and degrease surfaces thoroughly; remove rust or contaminants if present.
• Application: Apply T-Wash evenly using brush, roller, or by dipping components; follow product label dwell times.
• Overcoat Time: Do not recoat with T-Wash. Once etched, you’re ready to proceed with primer or paint as advised.
• Maintenance: Store any unused mordant solution in a tightly sealed container; keep away from children and pets.
• Pro Tip: Always neutralise and rinse the surface as per instructions before applying your chosen paint system.

Need a step-by-step guide? Our experts are standing by—chat live now!

Fast, Reliable & Fully Tracked UK Delivery

Every order is dispatched from our warehouse using a fully tracked DX or FedEx service, so you always know when your paint will arrive.

Delivery Options

• FREE Standard Delivery (orders over £75) Arrives in 2–3 working days
• Standard Delivery – £7.95 Arrives in 2–3 working days
• Express Delivery – £13.95 Next working day delivery when you order before 12:00 noon (Mon–Thu)
• Spending £75+? Select Express Upgrade at checkout and only pay the difference

Dispatch & Delivery Times (What Happens After You Order)

• Express delivery (order before 12:00 Mon–Thu) Dispatched same day, delivered next working day
• Standard delivery (Mon–Wed orders) Dispatched next working day, delivered 2–3 working days later
• Orders placed Thursday (standard delivery) Dispatched Friday for Monday delivery
• We do not dispatch or deliver on weekends or UK bank holidays

What to Expect on Delivery

Please provide a contact telephone number at checkout. This allows the courier to share tracking updates or contact you if there are any delivery issues.

Most orders require a signature on delivery. If you may not be available during the day, we recommend delivery to a workplace, business address, or another location where someone can sign.

Outside the UK Mainland?

Delivery prices shown apply to UK Mainland only.

For the Highlands, Islands, Northern Ireland, or non-mainland addresses, please contact us for a quick personalised quote via live chat, by calling 01482 222 421, or emailing info@specialistpaintsonline.co.uk.

Bottom Line

Order today, get fast and reliable delivery, track every step, and get painting without delays.

Free Delivery on Orders Over £75: Stock up on everything you need in one go

• Specialist Primers & Paints: Achieve a lasting finish post-T-Wash treatment
• Application Tools: Brushes, rollers, trays, or dip tanks for thorough coverage
• Cleaners & Degreasers: Remove oils or grease before applying T-Wash

Ready to complete your kit? Chat with us for recommended extras!

Teamac T-Wash Mordant Solution bites gently into new or weathered galvanised steel, giving paints the firm grip ordinary degreasers can’t. Better adhesion means no flaking, longer coating life and metal protection. Backed by more than 115 years of British paint innovation, it’s arguably the most reliable galvanised steel pretreatment money can buy. Because it visibly turns the surface grey so you know the job’s done right first time, no rival offers the same blend of certainty, speed and cost saving confidence.

Key Benefits

• Rock-Solid Bond – Micro etches zinc to stop topcoats peeling, slashing future labour and material costs.
• Extend Metal Life – Creates a corrosion resistant key that helps colour coats protect steel for years longer.
• Visible Colour Check – Blue liquid flashes to grey, proving full coverage and preventing expensive misses.
• Any Site, Any Time – Brush, dip or roller application suits fabricators, maintenance crews and DIYers alike, boosting productivity.
• One Low Cost Bottle – Treats up to 40 m² per litre, making it the most budget-smart route to a professional finish.

DIY friendly and fast-acting, apply, watch it turn grey and prime the same day; order before midday for next-day UK delivery, buy today, paint tomorrow and lock in long-lasting adhesion immediately.

• Finish / Texture: N/A (etching solution)
• Base: Acidic copper-salt mordant
• Available Colours: Blue solution (turns grey on reaction)
• Pack Sizes: 2.5 L polythene bottle
• Coverage: ~40 m²/L (approx.)
• Drying Times @ 20 °C: Reacts & dry-to-prime 2 h (typical)
• Re-coat Interval: Do not re-coat; rinse and prime after reaction
• Minimum Application Temp.: 5 °C
• VOC Content: 325 g/L
• Flash Point: 31 °C
• Application Method: Brush, dip, roller (rinse tools with water)
• Surface Suitability: New or weathered galvanised and zinc-sprayed steel within 7 days of galvanising

Need detailed specs or prep guidance? Chat with our experts now and prep your metal tomorrow!

Technical Data Sheet

Safety Data Sheet

1. What is Teamac T-Wash used for?

Teamac T-Wash is an acid-based mordant solution specifically formulated to etch zinc and galvanised steel, creating a surface that helps paint or primer adhere more effectively. It’s ideal for industrial, commercial, and exterior projects where poor paint adhesion is common.

2. How do I apply T-Wash to galvanised steel?

You can apply T-Wash by brush, dip, or roller. Ensure the galvanised surface is clean and free of any oil, grease, or dirt beforehand. After treatment, rinse if recommended, allow it to dry, and then follow up with your chosen paint or primer.

3. Does it need to dry before painting?

Yes. Allow the solution to react and etch the surface. Once it has finished etching and is completely dry, you can apply your paint or primer directly. Refer to the product instructions for specific timing guidelines.

4. Can I use T-Wash on previously painted or rusted surfaces?

It is best used on new or lightly oxidised galvanised steel. If surfaces are painted or heavily rusted, remove loose paint or rust first. In these scenarios, a different preparation method or product may be required. Check with our experts for guidance.

5. Will this product damage the metal?

No. When used as directed, Teamac T-Wash provides a controlled etching that improves paint adhesion without damaging the underlying galvanised layer. Always follow the instructions carefully, and wear appropriate protective equipment.

6. What coverage can I expect?

One litre typically covers about 40 m², although coverage may vary depending on the substrate’s texture and cleanliness. Applying it evenly ensures you get the best adhesion results for your subsequent coatings.

7. Is it safe to handle?

Teamac T-Wash is an acid-based solution containing copper salts, so it’s essential to use personal protective equipment (PPE) like gloves and safety glasses. Follow the safety guidelines on the product datasheet for storage, handling, and disposal.

Need help prepping galvanised or zinc-coated surfaces for painting?

For personalised guidance or additional details, contact our experts now via live chat—we’re here to help you achieve a secure, long-lasting paint finish!